Home / 1,386,211.05-2,079,513.41-426,746.51

Finding the Fourth Proportional to 1,386,211.05, 2,079,513.41 and 426,746.51

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Solution

The fourth proportional to 1,386,211.05, 2,079,513.41 and 426,746.51 is: 640,180.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,211.05 : 2,079,513.41 = 426,746.51 : x
  2. Step 2: Convert to fraction form
    1,386,211.05/2,079,513.41 = 426,746.51/x
  3. Step 3: Cross multiply
    1,386,211.05x = 2,079,513.41 × 426,746.51
  4. Step 4: Simplify right side
    1,386,211.05x = 887,425,085,482.58
  5. Step 5: Solve for x
    x = 887,425,085,482.58/1,386,211.05
  6. Step 6: Final answer
    x = 640,180.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.